檢驗(yan)彎板(ban)(ban)用(yong)(yong)(yong)途：主要用(yong)(yong)(yong)于(yu)高度(du)(du)機械(xie)和(he)儀器檢驗(yan)和(he)機床之間不垂(chui)直度(du)(du)的(de)檢查. 檢驗(yan)工(gong)件的(de)90°角，維修設(she)備時檢驗(yan)零部件相關表面(mian)的(de)相互垂(chui)直度(du)(du)，還(huan)經常用(yong)(yong)(yong)于(yu)鉗工(gong)劃(hua)線。檢驗(yan)彎板(ban)(ban)材質：高強(qiang)度(du)(du)鑄鐵HT200-300工(gong)作面(mian)硬(ying)度(du)(du)為(wei)(wei)HB170-240，經過兩次人工(gong)處理(li)（人工(gong)退火(huo)600度(du)(du)-700度(du)(du)和(he)自然時效2-3年）使(shi)用(yong)(yong)(yong)該產品 的(de)度(du)(du)穩定，耐磨性(xing)能好。檢驗(yan)彎板(ban)(ban)一(yi)(yi)般度(du)(du)：可以(yi)分為(wei)(wei)000級(ji)(ji)(ji)、00級(ji)(ji)(ji)、0級(ji)(ji)(ji)、1級(ji)(ji)(ji)、2級(ji)(ji)(ji)、3級(ji)(ji)(ji)。選用(yong)(yong)(yong)度(du)(du)標準(zhun)時一(yi)(yi)般根據使(shi)用(yong)(yong)(yong)情況酌(zhuo)情而定。3級(ji)(ji)(ji)度(du)(du)以(yi)上的(de)彎板(ban)(ban)用(yong)(yong)(yong)做檢驗(yan)、劃(hua)線、裝(zhuang)配等(deng)使(shi)用(yong)(yong)(yong)，4級(ji)(ji)(ji)度(du)(du)以(yi)下的(de)彎板(ban)(ban)一(yi)(yi)般用(yong)(yong)(yong)做鉚焊(han)等(deng)使(shi)用(yong)(yong)(yong)